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segment_analyze.go
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/
segment_analyze.go
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// Copyright 2021 iLogtail Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package skywalkingv3
import (
v3 "github.com/alibaba/ilogtail/plugins/input/skywalkingv3/skywalking/network/language/agent/v3"
management "github.com/alibaba/ilogtail/plugins/input/skywalkingv3/skywalking/network/management/v3"
"strconv"
"strings"
)
type SampleStatus int
// OpenTracingSpanKind are possible values for TagSpanKind and match the OpenTracing
// conventions: https://github.com/opentracing/specification/blob/master/semantic_conventions.md
// These values are used for representing span kinds that have no
// equivalents in OpenCensus format. They are stored as values of TagSpanKind
const (
OpenTracingSpanKindUnspecified = ""
OpenTracingSpanKindClient = "client"
OpenTracingSpanKindServer = "server"
OpenTracingSpanKindConsumer = "consumer"
OpenTracingSpanKindProducer = "producer"
OpenTracingSpanKindInternal = "internal"
)
const (
skywalkingTopicKey = "mq.topic"
skywalkingQueueKey = "mq.queue"
)
// map to open telemetry
var OtResourceMapping = map[string]string{
"hostname": AttributeHostName,
"Process No.": AttributeProcessID,
"OS Name": AttributeOSType,
"language": AttributeTelemetrySDKLanguage,
}
var OtSpanTagsMapping = map[string]string{
"url": AttributeHTTPURL,
"status_code": AttributeHTTPStatusCode,
"db.type": AttributeDBSystem,
"db.instance": AttributeDBName,
"mq.broker": AttributeNetPeerName,
}
func ParseSegment(span *v3.SpanObject, segment *v3.SegmentObject, cache *ResourcePropertiesCache, mapping map[int32]string) *OtSpan {
resource := cache.get(segment.Service, segment.ServiceInstance)
if resource == nil {
return nil
}
otSpan := NewOtSpan()
otSpan.Resource = resource
otSpan.Service = segment.Service
otSpan.Host = resource[AttributeHostName]
otSpan.Name = span.OperationName
switch {
case span.SpanLayer == v3.SpanLayer_MQ:
if span.SpanType == v3.SpanType_Entry {
otSpan.Kind = OpenTracingSpanKindConsumer
} else if span.SpanType == v3.SpanType_Exit {
otSpan.Kind = OpenTracingSpanKindProducer
}
mappingMessageSystemTag(span, otSpan, mapping)
case span.SpanType == v3.SpanType_Entry:
otSpan.Kind = OpenTracingSpanKindServer
case span.SpanType == v3.SpanType_Exit:
otSpan.Kind = OpenTracingSpanKindClient
case span.SpanType == v3.SpanType_Local:
otSpan.Kind = OpenTracingSpanKindInternal
default:
otSpan.Kind = OpenTracingSpanKindUnspecified
}
otSpan.TraceID = segment.TraceId
otSpan.SpanID = segment.TraceSegmentId + "." + strconv.FormatInt(int64(span.SpanId), 10)
if span.ParentSpanId < 0 {
otSpan.ParentSpanID = ""
} else {
otSpan.ParentSpanID = segment.TraceSegmentId + "." + strconv.FormatInt(int64(span.ParentSpanId), 10)
}
otSpan.Logs = make([]map[string]string, len(span.Logs))
for i, log := range span.Logs {
logEvent := make(map[string]string)
logEvent["time"] = strconv.FormatInt(log.Time, 10)
for _, kv := range log.Data {
logEvent[kv.Key] = kv.Value
// try extract status message, can be overwritten
if kv.Key == "error.kind" && len(kv.Value) > 0 {
otSpan.StatusMessage = kv.Value
}
}
otSpan.Logs[i] = logEvent
}
otSpan.Links = make([]*OtSpanRef, len(span.Refs))
if len(span.Refs) > 0 {
for i, ref := range span.Refs {
spanRef := &OtSpanRef{
TraceID: ref.TraceId,
SpanID: ref.ParentTraceSegmentId + "." + strconv.FormatInt(int64(ref.ParentSpanId), 10),
TraceState: "",
Attributes: nil,
}
otSpan.Links[i] = spanRef
}
otSpan.ParentSpanID = span.Refs[0].ParentTraceSegmentId + "." + strconv.FormatInt(int64(span.Refs[0].ParentSpanId), 10)
}
otSpan.Start = span.StartTime * 1000
otSpan.End = span.EndTime * 1000
otSpan.Duration = 1000 * (span.EndTime - span.StartTime)
otSpan.Attribute = make(map[string]string, len(span.Tags)+8)
if len(span.Peer) > 0 {
hostport := strings.Split(span.Peer, ":")
otSpan.Attribute[AttributeNetPeerIP] = hostport[0]
if len(hostport) == 2 {
otSpan.Attribute[AttributeNetPeerPort] = hostport[1]
}
}
if len(span.Tags) > 0 {
for _, tag := range span.Tags {
otKey, ok := OtSpanTagsMapping[tag.Key]
if ok {
otSpan.Attribute[otKey] = tag.Value
} else {
if skywalkingTopicKey == tag.Key {
otSpan.Attribute[AttributeMessagingDestinationKind] = "topic"
otSpan.Attribute[AttributeMessagingDestination] = tag.Value
} else if skywalkingQueueKey == tag.Key {
otSpan.Attribute[AttributeMessagingDestinationKind] = "queue"
otSpan.Attribute[AttributeMessagingDestination] = tag.Value
}
otSpan.Attribute[tag.Key] = tag.Value
}
}
}
if span.IsError {
otSpan.StatusCode = StatusCodeError
} else {
otSpan.StatusCode = StatusCodeOk
}
return otSpan
}
func mappingMessageSystemTag(span *v3.SpanObject, otSpan *OtSpan, mapping map[int32]string) {
messageSystem, finded := mapping[span.ComponentId]
if finded {
otSpan.Attribute[AttributeMessagingSystem] = messageSystem
} else {
otSpan.Attribute[AttributeMessagingSystem] = "MessagingSystem"
}
}
func ConvertResourceOt(props *management.InstanceProperties) map[string]string {
propertyMap := make(map[string]string, len(props.Properties))
for _, p := range props.Properties {
otKey, ok := OtResourceMapping[p.Key]
if ok {
propertyMap[otKey] = p.Value
} else {
propertyMap[p.Key] = p.Value
}
}
return propertyMap
}